Bicycle valve adaptor



FIG. 1 is a perspective view of a bicycle valve adaptor, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the bicycle valve adaptor that form no part of the claimed design. 

CLAIM The ornamental design for a bicycle valve adaptor, as shown and described. 